FIC injectors are just to fat to fit. I need a little help.


I just wanted to give everyone reading a heads up.The problem I am having this weekend is trying to get my brand spanking new Magnus manifold installed. The manifold is a work of art by the way. I pulled the stock manifold off and had no problems getting the Magnus piece in till I tried to get the fuel injectors installed. You can see the injector body hitting on the second pic even before trying to push it in. I was beating my head on the wall till I took a close look. The injectors in question are FIC 850cc evo injectors. If you are running this manifold could you please let me know what injectors you run so that I can order them on monday.

 

What part is hitting? I dont see it? I have one of these manifolds for my car also, but I have these sexy slender injectors in mine. I forgot the brand, I'll try to remember to look and post back.

 

It appears as though the body of the injector is hitting on the runner, is that the case? In the picture it looks as though the injector is not even pushed in and there is very little clearance there.

Robert I am sure more than one person would be interested in the injectors you are using with this manifold. Please post info. Thanks.

Josh

 

Well what I remember off the top of my head is that they were pricey. They were all within some incredibly small percent of one another and ID'd individuially so you can do individual injector compensation within the ECU and make the fuel flow rate in each cylinder EXACTLY the same to avoid getting one hole leaner than another. That way you can get closer to the edge without dropping one hole over the edge

 

The injectors in question are the brand new Bosch 1000cc SATURATED (high resistance) EV6 style. They have a better spray pattern, have high resolution capabilities, and will work at much higher differential fuel pressures than the common units available. They are tiny, you could fit 2 side by side on one intake runner. We worked out the oring situation they are a very good tight no boost leak fit.

I do not know if they work on a factory ECU but I don't see why not, just bypass the injector ballast.


BTW its not uncommon for some fabbed/aftermarket intakes to require a slight grind for clearance for the fatty Delphis. Just make sure you don't break thru the top wall.

 

FP runs Magnus Cast Intake.

There is a good endorsement.

 

Right now a stock style intake is on the car. Pic of injectors shortly.

 

I appreciate all the help. Yes it is the injector body that is hitting. Smaller body injectors would be great but it looks like the general consensus is to grind a little bit on the runners. I just figured that it would have been designed with aftermarket injectors in mind. If anyone else has any input please speak up. Do all the FIC / PTE injectors have roughly the same body diameter?

 

As mfg with EV6 connector and rail adapter.




With EV6 to EV1 plug-in adapter

 

Those injectors look very skinny in comparison to the FICs. Is anyone running Siemens injectors. From what I can dig up they look pretty thin also. Also I looked into grinding the runner but the thickness of the injector would require me to grind roughly 1/8 of material off to get it to fit correctly and seeing the thickness is only 3/16. This manifold looks great but what a serious design flaw. I cant really get it in my head that it would be designed without looking into injector sizes. I mean they really didnt think that everyone was goint to use a stock turbo and injectors. Sorry but I had to rant a little bit. Any help would be appreciated.

 

GrocMax is that Robert's Wilson v2 in your photo?

Nice choice on the injectors, we had a similar Bosch injector on projects a few years back. I'm glad they made it to production.

To the OP if there is enough material have a machine shop spot face the area. It should not be that big a deal and a lot cleaner than grinding and a lot cheaper than buying another set of injectors.

 

Yup. Install delay due to other projects and new instrumentation.


I think the biggest Siemens/Deka available is ~82 lb/min. These are over 1000cc/min at higher differential pressures.

 

It's always something...Ha,Ha. I got your PM, that new cam looks like the Indianapolis Motor Speedway from the air. A rectangle with the corners rounded off. Have fun with the instumentation.

 

Thats about what I am running now. Does anyone happen to have a pic of the Siemen injectors to compare to. As it is now there I can not see a way to get these injectors to fit and still have enough material on the runners to be safe during boost. Its a shame that this problem came up. I dont really want to bring any bad reputation to Magnus and his product. I feel all this will kind of make people look elsewhere for their new intake manifold.

 

Please excuse my grammer as this is being posted from my berry at the racetrack in Puerto Rico, where we have been competing for the past week.

Here is what we found regarding a clearance issue with the FIC blue injector and the V5 intake. FIC machines a different style injector which was never intended for use on mitsubishi's originally, careful machining, allows them to fit in mitsu apps. But they do perform well. Lately The injector has been redesigned and is now a blue in color, and one of its features is a larger coil body, and It is mounted lower on its frame. This causes interference with runner on the V5 intake manifold. Most of the issue is with the O-ring they provide and the way the injector is machined to fit the standard evo intake manifold.

Here is the fix, and things to watch out for. Firstly the FIC base o-ring has a marginal seal at best, we always recommend that you use an OEM injector ring, as it is square and provides a leak free seal. Secondly the way the FIC injector is machined at the top does not allow the use of the OEM insulator that pushes the injector into the base. It is not necessary, but some people incorrectly install them. We have seen these used, and it incorrectly pushes the injector further down, the biggest problem is that it can ruin the o-ring. Basically your combo of rail and injector, you must be certain that you have a positive seal and they are seated square. There are so many brands of injectors and rails available that incompatibility between the 3 components can happen.

Easiest way to fix the problem is to clearance where the injector body interferes with the runner on the FIC injector. With a die grinder you must carefully remove a small amount of material and test fit until you have good clearance. Don't worry as you will only remove 1.5mm at most to clearance in that area and it will be completely covered by the injector. We will shortly provide photo's and a VFAQ on how to do this.



Thank you
Marco Passante